Script unaware of all regions

[deathsfaction]

Have discovered that the RDS script doesn't show all DB instances in all zones. For example, I've recently added an instance in Canada and it doesn't appear to know this is a valid region. Additionally, having it list all instances only shows up 9 regions:

/usr/lib64/nagios/plugins/check_rds -r all -l
List of all DB instances in all region(s):
{'ap-northeast-1': [],
 'ap-southeast-1': [],
 'ap-southeast-2': [DBInstance:xxx],
 'eu-central-1': [],
 'eu-west-1': [DBInstance:xxxx, DBInstance:xxx],
 'sa-east-1': [],
 'us-east-1': [],
 'us-west-1': [],
 'us-west-2': []}

And if trying to query against an instance in Canada, using either ca-central-1 or ca-central-1a

/usr/lib64/nagios/plugins/check_rds -r ca-central-1 -i xxxxx -m status

Traceback (most recent call last):
  File "/usr/lib64/nagios/plugins/check_rds", line 399, in <module>
    main()
  File "/usr/lib64/nagios/plugins/check_rds", line 220, in main
    rds = RDS(region=options.region, profile=options.profile, identifier=options.ident)
  File "/usr/lib64/nagios/plugins/check_rds", line 49, in __init__
    self.info = rds.get_all_dbinstances(self.identifier)
AttributeError: 'NoneType' object has no attribute 'get_all_dbinstances'